If you are attracted to cartoons, there is something wrong inside your brain.
If you are attracted to young children there is something wrong inside your brain.
If you are attracted to cartoons that are [i]also[/i] young children then you should seek mental help just as a pedophile would.
I liked Nana from Elfen Lied. A lot of "lolis" allow the show to explore dark themes in the eyes of a child.
Then again, I really only watch darker themed anime. I find most "loli" characters in other types of anime to be annoying or simply food for the people at rule 34.